CN1150658C - Nonreciprocal circuit device and communication apparatus using the same - Google Patents
Nonreciprocal circuit device and communication apparatus using the same Download PDFInfo
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- CN1150658C CN1150658C CNB011047097A CN01104709A CN1150658C CN 1150658 C CN1150658 C CN 1150658C CN B011047097 A CNB011047097 A CN B011047097A CN 01104709 A CN01104709 A CN 01104709A CN 1150658 C CN1150658 C CN 1150658C
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/38—Circulators
- H01P1/383—Junction circulators, e.g. Y-circulators
- H01P1/387—Strip line circulators
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Abstract
A nonreciprocal circuit device it provided which has an improved reflection characteristic of the port of the center conductor which is disposed orthogonally to the side-walls of a yoke. In this nonreciprocal circuit device, the conductor width of one center conductor which is disposed orthogonally to the side-walls of the yoke is made wider than that of each of the two other center conductors.
Description
Technical field
The present invention relates to Nonreciprocal circuit device, also relate to the communication equipment that uses it such as isolator that in the high frequency band of for example microwave band, uses or circulator.
Background technology
Usually, be used to utilize the very low decay of in the transmission direction of signal, showing of it to show the characteristic of very high decay simultaneously in the opposite direction in the communication equipment etc. such as lumped constant (concentrated-constant) type isolator or circulator
Japanese utility model application discloses a kind of so traditional isolator for JP62-86705 number.Fig. 9 is the decomposition diagram of the traditional isolator of expression, and Figure 10 represents its internal structure.In this isolator, the shell 7 that resin is made is set under the U shape with left and right sides sidewall 8b and diapire 8a in the yoke portion 8, magnet assembly 5 comprises central conductor 51,52 and 53 and magnet 55, capacitor C1, C2 that is used for mating and C3 and terminating resistor R are provided at terminal enclosure 7, permanent magnet 3 is provided with thereon, and yoke portion 2 is installed on the lower casing 8 and covers upper part with integral body on the case shape.Last yoke portion 2 and following yoke portion 8 are connected together at two sidewall 8b places of the relative sidewall of last yoke portion 2 and following yoke portion 8, and formation has the roughly square tube shape yoke portion of roof, diapire and two sidewalls that are connected with roof, diapire.Yoke portion 2 and following yoke portion 8 and permanent magnet have constituted closed magnetic circuit on these.
All central conductor 51 to 53 are configured to the basal surface that its common ground partly is abutted against magnet 55, these central conductor on the top surface of magnet 55 with roughly 120 the degree angles intersect mutually, by the side surface of magnet 55.Each central conductor 51 and 52 interface P1 and P2 are connected to the I/O terminal 71 that is formed in the terminal enclosure 7 and 72 and capacitor C1 and C2.The interface P3 of central conductor 53 is connected to capacitor C3 and terminating resistor R, and all capacitor C1 are connected to stage terminal 73 to the side of C3 and terminating resistor R.The common ground of all central conductor 51 to 53 partly is connected to down the diapire 8a of yoke portion 8.
In this Nonreciprocal circuit device, as shown in figure 11, the current i of each central conductor of flowing through (Nonreciprocal circuit device 53 only is shown among Figure 11) is split into two-way up and down from grounded part.At this moment, if use central conductor 51 to 53 with same conductor width and conductor spacing, from be arranged to central conductor 53 with the sidewall 8b quadrature of following yoke portion 8 flow to the electric current of going up yoke portion 2 will be greater than flowing to the electric current of going up yoke portion 2 from two other central conductor 51 and 52, the electric current of yoke portion 8 will be less than the electric current of yoke portion 8 under flowing to from two other central conductor 51 and 52 down and flow to from central conductor 53.This is because central conductor 53 is provided with than the sidewall 8b of two other central conductor 51 and 52 more close yoke portions, and shortens because of the current path in last yoke portion 2.As a result, by magnet 55 since be orthogonal to magnetic flux that the electric current j3 of central conductor 53 of the sidewall 8b of yoke portion causes become less than by magnet 55 because the current i 1 of each of other central conductor 51 and 52 and each magnetic flux that causes of j2.Therefore, the central conductor 53 that is orthogonal to the sidewall 8b of yoke portion dies down with other central conductor 51 and 52 coupling, is higher than the impedance of other two central conductor 51 and 52 thereby become in the impedance (being called " interface impedance " later on) of the interface of central conductor 53.
Usually, use the impedance of the I/O part in the circuit of these Nonreciprocal circuit devices to have predetermined value (normally 50 Ω), each interface impedance in Nonreciprocal circuit device also is set to predetermined value.But, in traditional central conductor, as mentioned above, having the interface impedance higher than two other central conductor owing to be arranged to be orthogonal to the central conductor of the sidewall of yoke portion, the problem that the reflection characteristic of the interface of this central conductor worsens can appear.
The open No.7-307603 of Japanese unexamined patent discloses a kind of Nonreciprocal circuit device, wherein each interface is provided with the conductor width and the conductor spacing of three central conductor, but Nonreciprocal circuit device is not handled configuration relation between the sidewall of these central conductor and yoke portion hereto.The configuration relation that the present invention has studied between the sidewall of central conductor and yoke portion solves the problems referred to above.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of being arranged to and have the Nonreciprocal circuit device of the reflection characteristic of improvement, and a kind of communication equipment that uses this Nonreciprocal circuit device is provided with the interface of the central conductor of the sidewall quadrature of yoke portion.
For achieving the above object, the invention provides a kind of Nonreciprocal circuit device, comprise have roof, the yoke portion of diapire and two opposing sidewalls that are connected with described diapire with described roof, described yoke portion holds permanent magnet and magnet, wherein cross one another three central conductor of being arranged to predetermined that provide of angle are provided magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion.In this Nonreciprocal circuit device, be arranged to roughly each the width that conductor width with the central conductor of the sidewall quadrature of yoke portion is set to be wider than two other central conductor.And, when each of central conductor is made of a large amount of conductors, be arranged to roughly each the conductor spacing that conductor spacing with the central conductor of the sidewall quadrature of yoke portion is configured to be wider than two other central conductor.
According to this structure, be arranged to roughly to reduce, thereby the reflection characteristic of this central conductor can be enhanced with the interface impedance of the central conductor of the sidewall quadrature of yoke portion.Especially, in the present invention, be arranged to roughly and the interface impedance of the central conductor of the sidewall quadrature of yoke portion impedance for making, be arranged to roughly to be set to be wider than each conductor width or conductor spacing of two other central conductor with the conductor width of the central conductor of the sidewall quadrature of yoke portion or conductor spacing near two other central conductor.This makes each interface realize the suitable resistance coupling, and its result causes having at the interface of each of central conductor the reflection characteristic of improvement.
Preferably each of central conductor is made of two conductors.This makes owing to simple in structure making inserted the loss reduction.
And preferably terminating resistor is connected to any one of central conductor, to form isolator.In this case, owing to be arranged to roughly to have an interface impedance with the interface of the central conductor of the sidewall quadrature of yoke portion, the interface impedance of the central conductor that this impedance ratio is other is easier to depart from, so the interface of this central conductor is suitable for the isolating interface that can be stopped by the resistor with arbitrary resistance value.Therefore, preferably be connected in this interface stopping interface.
And communication equipment according to the present invention is by comprising that the Nonreciprocal circuit device with above-mentioned feature realizes.Thereby obtain having the communication equipment of excellent specific property.
Purpose, feature and advantage with other above of the present invention become clearer from the specific descriptions to the preferred embodiments of the present invention of following connection with figures.
Description of drawings
Fig. 1 is the integrally-built decomposition diagram of expression according to the isolator of the first embodiment of the present invention;
Fig. 2 is the plane graph of expression according to the isolator of first embodiment, has therefrom removed permanent magnet and last yoke portion;
Fig. 3 is the structure of expression first embodiment and the curve of the reflection loss in the traditional structure;
Fig. 4 is the plane graph of expression according to the isolator of second embodiment, has therefrom removed permanent magnet and last yoke portion;
Fig. 5 is the structure of expression second embodiment and the curve of the reflection loss in the traditional structure;
Fig. 6 is the plane graph of expression according to the isolator of the 3rd embodiment, has therefrom removed permanent magnet and last yoke portion;
Fig. 7 is the structure of expression the 3rd embodiment and the curve of the reflection loss in the traditional structure;
Fig. 8 is the block diagram of the communication equipment of expression a fourth embodiment in accordance with the invention;
Fig. 9 is the integrally-built decomposition diagram of the traditional isolator of expression;
Figure 10 is the plane graph of the traditional isolator of expression, has therefrom removed permanent magnet and last yoke portion;
Figure 11 is the diagrammatic sectional view of expression isolator shown in Figure 10.
Embodiment
Structure according to the Nonreciprocal circuit device of the first embodiment of the present invention will be described with reference to Fig. 1 and 2.Fig. 1 is the integrally-built decomposition diagram of expression isolator, and Fig. 2 is the plane graph of expression isolator, from wherein having removed permanent magnet and last yoke portion.
In the isolator according to this embodiment, terminal enclosure 7 is set at roughly under the U shape in the yoke portion 8.Magnet assembly 5 comprises central conductor 51,52 and 53 and magnet 55.Magnet assembly 5, the capacitor C1 that is used for mating are provided at terminal enclosure 7 to C3 and terminating resistor R, and permanent magnet 3 is provided with thereon, and yoke portion 2 is installed in down in the yoke portion 8 and covers upper part with integral body on the case shape.DC magnetic field is put on magnet assembly 5 by permanent magnet 3.
In this embodiment, be arranged to the sidewall quadrature of yoke portion central conductor 53 each of conductor width A3 do widelyer than each width A1 and each of A2 of other central conductor 51 and 52.That is, in this embodiment, constitute the sidewall quadrature be arranged to yoke portion central conductor 53 two conductors conductor width A3 be configured to be wider than each conductor width A1 and A2 of other central conductor 51 and 52.Here, each central conductor 51,52 has identical size with 53 conductor spacing B1, B2 with B3.
In the recess that is formed on the surrounding edge of patchhole L7c, provide the capacitor C1 that is used to mate to C3 and terminating resistor R.Magnet assembly 5 is inserted into patchhole 7c and permanent magnet is set at above the magnet assembly 5.Common ground part 54 on the diapire of magnet assembly 5 is connected to down the diapire 8a of yoke portion 8.The capacitor C1 that is used to mate is connected in grounding terminals 73 separately to the lower surface electrode of C3 and the distolateral electrode of terminating resistor R.The interface P1 of central conductor 51 to 53 is connected to the capacitor C1 that is used to the mate upper surface electrode to C3, the distolateral interface p3 that is connected to of another of terminating resistor R to P3.
The effect of the structure of first embodiment then, is described with reference to figure 3.Fig. 3 is the coverage diagram in the interface of the central conductor 53 of the sidewall of being arranged to be orthogonal to yoke portion of the expression structure of first embodiment and traditional structure (all central conductor are formed has identical conductor width and identical conductor spacing).The magnet size of each of the conventional example and the first embodiment of the present invention all is that 3.0mm diameter and 0.5mm are thick.The central conductor of using in the conventional example 53 has the conductor spacing of conductor width and the 0.2mm of 0.3mm, is used as all conductors 51 to 53 in the conventional example and has the conductor spacing of conductor width and the 0.2mm of 0.15mm with central conductor 51 and 52 in this embodiment.Saturation magnetization is set to 0.1T, and the impedance of measuring system is 50 Ω.In conventional example, approximately be 60 Ω at the central frequency place corresponding to the interface impedance of interface P3, and approximately be 50 Ω in the interface impedance of the interface P3 of the embodiment of central frequency place.Each approximately is 50 Ω in the impedance of other interface of central frequency place.
As shown in Figure 3, the interface P3 place reflection characteristic of this embodiment obviously is better than traditional example in the frequency band that requires.For example, at central frequency (900MHz), the reflection loss of this embodiment is 46.6dB, and by contrast, conventional example is 19.1dB.That is, this embodiment shows the reflection characteristic of obviously improving than conventional example.
As mentioned above, in this embodiment, when all central conductor are formed that the situation of coming with conventional example is the same to have equal conductor width, have the central conductor of high interface impedance, the central conductor 53 of promptly being arranged to be orthogonal to the sidewall 8b of yoke portion provides conductor width A1 and the wideer conductor width A3 of A2 than each of other central conductor 51 and 52.Therefore, the interface impedance of this central conductor 53 reduces, thereby the reflection characteristic of the interface of this central conductor 53 has been enhanced.Especially the interface impedance of central conductor 53 by conductor width A3 is provided with wideer being lowered, thereby the interface impedance of central conductor 53 more approaches the impedance of Circuits System, promptly adopts and other central conductor 51 and 52 the essentially identical resistance value of resistance value.This makes the interface impedance of all central conductor be configured to the impedance matching with Circuits System.Therefore, if the magnet assembly of the foregoing description is used, inserting loss when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as input/output interface can be lowered, and isolates characteristic and be enhanced when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as isolating interface.
In the above-described embodiments, isolator forms by the central conductor 53 that terminating resistor R is connected in the sidewall of being arranged to be orthogonal to yoke portion, but the method that forms isolator is not limited to this.Can form isolator by terminating resistor R is connected in one of central conductor 51 and 52 on the contrary.Preferably terminating resistor R is connected and central conductor 53, and its interface impedance is easier to depart from than the interface impedance of central conductor 51 and 52, as mentioned above.The interface impedance value of the resistance value of matched termination resistor R and central conductor 53 has further been improved isolation characteristic exactly.
Then, the structure of describing according to the isolator of second embodiment with reference to figure 4.In isolator shown in Figure 4, each of central conductor 51 to 53 is made of two conductors, is the conductor spacing B3 of the central conductor 53 of the sidewall 8b that is arranged to be orthogonal to yoke portion widelyer than each conductor spacing B1 and B2 of other central conductor 51 and 52.That is, in this embodiment, the conductor spacing B3 of two conductors that constitutes the central conductor 53 of the sidewall 8b be arranged to be orthogonal to yoke portion is configured to be wider than each conductor spacing B1 and B2 of other central conductor 51 and 52.Here, each central conductor 51,52 has identical size with 53 conductor width A1, A2 with A3.
Fig. 5 is the curve of the reflection characteristic in the interface of the central conductor 53 of the sidewall of being arranged to be orthogonal to yoke portion of the expression structure of second embodiment and traditional structure.The central conductor 53 that this embodiment uses has the conductor spacing of conductor width and the 0.5mm of 0.15mm.Identical with in above-mentioned first embodiment of other size and measuring condition.In this embodiment, the interface impedance at the interface P3 of central frequency place approximately is 55 Ω.Each approximately is 50 Ω in the impedance of other interface of central frequency place.
As shown in Figure 5, the interface P3 place reflection characteristic of this embodiment obviously is better than traditional example in the frequency band that requires.For example, at central frequency, the reflection loss of this embodiment is 26.3dB, and by contrast, conventional example is 19.1dB.That is, this embodiment shows the reflection characteristic of obviously improving than conventional example.
As mentioned above, in this embodiment, when all central conductor are formed that the situation of coming with conventional example is the same to have equal conductor spacing, have the central conductor of high interface impedance, the central conductor 53 of promptly being arranged to be orthogonal to the sidewall of yoke portion provides conductor spacing B1 and the wideer conductor spacing B3 of B2 than each of other central conductor 51 and 52.Therefore, the interface impedance of this central conductor 53 reduces, thereby the reflection characteristic of the interface of this central conductor is enhanced.Especially, the interface impedance of central conductor 53 by conductor spacing B3 is provided with wideer being lowered, thereby interface impedance more approaches the impedance of Circuits System.Therefore, if the structure of this embodiment is used, inserting loss when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as input/output interface can be lowered, and isolates characteristic and be enhanced when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as isolating interface.
Then, the structure of describing according to the isolator of the 3rd embodiment with reference to figure 6.In isolator shown in Figure 6, each of central conductor 51 to 53 is made of two conductors, do each of the conductor width A3 of the central conductor 53 of the sidewall 8b that is arranged to be orthogonal to yoke portion widelyer, and be the conductor spacing B3 of the central conductor 53 of the sidewall 8b that is arranged to be orthogonal to yoke portion widelyer than each conductor spacing B1 and B2 of other central conductor 51 and 52 than each conductor width A1 and A2 of other central conductor 51 and 52.Promptly, in this embodiment, each that constitutes the conductor width A3 of two conductors of central conductor 53 of the sidewall 8b be arranged to be orthogonal to yoke portion and conductor spacing B3 all is configured to be wider than each conductor width A1 and A2 and conductor spacing B1 and B2 of other central conductor 51 and 52.
Fig. 7 is the curve of the reflection characteristic in the interface of the central conductor 53 of the sidewall 8b that is arranged to be orthogonal to yoke portion of the expression structure (structure shown in Figure 8) of the 3rd embodiment and traditional structure.The central conductor 53 that this embodiment uses has the conductor spacing of conductor width and the 0.3mm of 0.25mm.Identical with in above-mentioned first embodiment of other size and measuring condition.In this embodiment, the interface impedance at the interface P3 of central frequency place approximately is 50 Ω.Each approximately is 50 Ω in the impedance of other interface of central frequency place.
As shown in Figure 7, the reflection characteristic of the interface P3 of this embodiment obviously is better than traditional example in the frequency band that requires.For example, at central frequency (900MHz), the reflection loss of this embodiment is 38.7dB, and by contrast, conventional example is 19.1dB.That is, this embodiment shows the reflection characteristic of obviously improving than conventional example.
As mentioned above, in this embodiment, when all central conductor are formed that the situation of coming with conventional example is the same to have equal conductor width and equal conductor spacing, have the central conductor of high interface impedance, the central conductor 53 of promptly being arranged to be orthogonal to the sidewall of yoke portion provides conductor width A1 and A2 and conductor spacing B1 and wideer conductor width A3 and the conductor spacing B3 of B2 than each of other central conductor 51 and 52.Therefore, the interface impedance of this central conductor 53 reduces, thereby the reflection characteristic of the interface of this central conductor 53 is enhanced.Especially, the interface impedance of central conductor 53 by conductor width A3 and conductor spacing B3 are provided with wideer being lowered, thereby interface impedance more approaches the impedance of Circuits System.Therefore, if the structure of this embodiment is used, inserting loss when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as input/output interface can be lowered, and isolates characteristic and be enhanced when the interface of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion is used as isolating interface.
In the above-described embodiments, central conductor 51,52 and 53 each be described to the central conductor that constitutes by two conductors, but the method that forms central conductor is not limited to this.These central conductor 51,52 and each available conductor of 53 form or are made of three or more conductors.
And in the above-described embodiments, each of central conductor is described to have a kind of like this structure, and wherein each of the central conductor of metallic plate formation is folded and is set on the magnet, but the structure of central conductor is not limited to this.The structure of each of central conductor can be a kind of like this structure, and wherein central conductor is made of the inside or the lip-deep electrode film of electrical insulator or magnet.And the shape of permanent magnet 3 is not restricted to annular, and can use such as the tetragonal polygon in the plane graph.
And, in the above-described embodiments, explained the isolator that terminating resistor is connected in an interface P3 by illustrative mode.But the present invention can also be applied to interface P3 is not connected in terminating resistor R as the 3rd input/output interface the circulator of interface P3.
And in the above-described embodiments, by connecting the yoke portion that yoke portion and following yoke portion form, the method that still forms yoke portion is not limited to this.Also can use the roughly square tube shape yoke portion that uses the single formation of a kind of material.
Then, shown in Figure 8 according to the structure of the communication equipment of the 4th embodiment.In this communication equipment, antenna ANT is connected to the antenna end of duplexer DPX, this duplexer comprises emission filter TX and receiving filter RX, isolator ISO be connected and the input and radiating circuit of emission filter TX between, receiving circuit is connected to the output of receiving filter RX.Be launched away through isolator ISO and emission filter TX from antenna ANT from the signal of radiating circuit emission.The received signal that receives at antenna ANT is imported into receiving circuit through receiving filter RX.
Here, as isolator ISO, the isolator of each of the foregoing description all can be used.By using according to the Nonreciprocal circuit device with reflection characteristic of improvement of the present invention, the communication equipment that can obtain having excellent specific property.
Obviously see from top description, according to Nonreciprocal circuit device of the present invention, owing to do the conductor width of the central conductor of the sidewall of being arranged to be orthogonal to yoke portion and/or conductor spacing widelyer than each conductor width and/or conductor spacing of other central conductor, the interface impedance of central conductor of being arranged to be orthogonal to the sidewall of yoke portion reduces, thereby the reflection characteristic of the interface of this central conductor is enhanced.Therefore, the invention enables Nonreciprocal circuit device to realize with low insertion loss and excellent isolation characteristic.
And, by installing, can realize having the communication equipment of excellent specific property according to Nonreciprocal circuit device of the present invention.
Although the present invention is illustrated with reference to the description of current consideration preferred embodiment, should understand in the case of without departing from the present invention and aspect widely, can carry out various changes and modification, therefore, be intended to cover all changes and modification by accompanying Claim, it falls within true spirit of the present invention and the scope.
Claims (9)
1. Nonreciprocal circuit device comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Be arranged to each the width that conductor width with the central conductor of the sidewall quadrature of yoke portion is set to be wider than two other central conductor.
2. Nonreciprocal circuit device comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Each of described three central conductor is made of a plurality of conductors, and
Be arranged to each the conductor spacing that conductor spacing with the central conductor of the sidewall quadrature of yoke portion is set to be wider than two other central conductor.
3. Nonreciprocal circuit device comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Each of described three central conductor is made of a plurality of conductors, and
Be arranged to be set to be wider than each conductor width and conductor spacing of two other central conductor with the conductor width of the central conductor of the sidewall quadrature of yoke portion and conductor spacing.
4. according to claim 1,2 or 3 Nonreciprocal circuit device, wherein
Each of described three central conductor is made of two conductors.
5. according to claim 1,2 or 3 Nonreciprocal circuit device, wherein
Terminating resistor is connected in any one interface of described three central conductor.
6. according to the Nonreciprocal circuit device of claim 5, wherein
Terminating resistor is connected in the interface of being arranged to the central conductor of the sidewall quadrature of yoke portion.
7. communication equipment comprises:
One Nonreciprocal circuit device, this circuit devcie comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Be arranged to each the width that conductor width with the central conductor of the sidewall quadrature of yoke portion is set to be wider than two other central conductor.
8. communication equipment comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Each of described three central conductor is made of a plurality of conductors, and
Be arranged to each the conductor spacing that conductor spacing with the central conductor of the sidewall quadrature of yoke portion is set to be wider than two other central conductor.
9. communication equipment comprises:
The yoke portion that comprises the square tube shape, it has roof, diapire and four sidewalls, comprises two relative sidewalls that are connected with described diapire with described roof in the middle of four sidewalls, and described yoke portion holds permanent magnet and magnet,
Cross one another three central conductor of being arranged to predetermined that provide of angle are provided wherein said magnet with being electrically insulated from each other, and one of three conductors are configured to roughly the sidewall quadrature with yoke portion,
Each of described three central conductor is made of a plurality of conductors, and
Be arranged to be set to be wider than each conductor width and conductor spacing of two other central conductor with the conductor width of the central conductor of the sidewall quadrature of yoke portion and conductor spacing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000009838A JP3395748B2 (en) | 2000-01-19 | 2000-01-19 | Non-reciprocal circuit device and communication device |
| JP009838/2000 | 2000-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1307408A CN1307408A (en) | 2001-08-08 |
| CN1150658C true CN1150658C (en) | 2004-05-19 |
Family
ID=18537938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011047097A Expired - Lifetime CN1150658C (en) | 2000-01-19 | 2001-01-19 | Nonreciprocal circuit device and communication apparatus using the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6590467B2 (en) |
| JP (1) | JP3395748B2 (en) |
| KR (1) | KR100394807B1 (en) |
| CN (1) | CN1150658C (en) |
| FR (1) | FR2805086B1 (en) |
| GB (1) | GB2359935B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3458806B2 (en) * | 2000-01-19 | 2003-10-20 | 株式会社村田製作所 | Non-reciprocal circuit device and communication device |
| JP2003087014A (en) * | 2001-06-27 | 2003-03-20 | Murata Mfg Co Ltd | Nonreciprocal circuit element and communication apparatus |
| KR20090111436A (en) * | 2008-04-22 | 2009-10-27 | 주식회사 이엠따블유안테나 | Ferrite structure and method for adjusting magnetic permeability of ferrite |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917124A1 (en) | 1979-04-27 | 1980-11-06 | Licentia Gmbh | Broadband microwave calculator - has three inner conductor patterns one above other, insulated from one another and cutting ferrite coupling cavity |
| JP3196491B2 (en) | 1994-05-12 | 2001-08-06 | 株式会社村田製作所 | Non-reciprocal circuit device |
| JP2721306B2 (en) | 1994-06-15 | 1998-03-04 | 日立金属株式会社 | Lumped constant type non-reciprocal circuit device |
| JPH0955607A (en) | 1995-08-11 | 1997-02-25 | Taiyo Yuden Co Ltd | Irreversible circuit element |
| JP3702595B2 (en) * | 1997-08-08 | 2005-10-05 | 株式会社村田製作所 | Non-reciprocal circuit element |
| JPH11168412A (en) | 1997-12-05 | 1999-06-22 | Hitachi Ltd | Communication control equipment |
| US6396361B1 (en) * | 1998-09-25 | 2002-05-28 | Matsushita Electric Industrial Co., Ltd. | Non-reciprocal circuit element with ground terminals on one side free of input/output terminals |
| JP3458806B2 (en) | 2000-01-19 | 2003-10-20 | 株式会社村田製作所 | Non-reciprocal circuit device and communication device |
-
2000
- 2000-01-19 JP JP2000009838A patent/JP3395748B2/en not_active Ceased
-
2001
- 2001-01-18 US US09/764,755 patent/US6590467B2/en not_active Expired - Lifetime
- 2001-01-19 KR KR10-2001-0003143A patent/KR100394807B1/en active IP Right Grant
- 2001-01-19 CN CNB011047097A patent/CN1150658C/en not_active Expired - Lifetime
- 2001-01-19 FR FR0100770A patent/FR2805086B1/en not_active Expired - Fee Related
- 2001-01-19 GB GB0101449A patent/GB2359935B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20010019296A1 (en) | 2001-09-06 |
| KR20010076383A (en) | 2001-08-11 |
| JP3395748B2 (en) | 2003-04-14 |
| JP2001203508A (en) | 2001-07-27 |
| CN1307408A (en) | 2001-08-08 |
| FR2805086B1 (en) | 2006-07-14 |
| GB0101449D0 (en) | 2001-03-07 |
| US6590467B2 (en) | 2003-07-08 |
| FR2805086A1 (en) | 2001-08-17 |
| KR100394807B1 (en) | 2003-08-14 |
| GB2359935A (en) | 2001-09-05 |
| GB2359935B (en) | 2002-01-30 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20040519 |